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Maxi-Jet®PH pump and power head is ideal for powering undergravel filters or creating internal water movement from its fully rotational output. This pump incorporates a venturi aeration device to provide optimal aeration and gas exchange in the aquarium. A silencer keeps the venturi aeration device operating quietly. An adjustable air filter permits the user to fine-tune air volume and water mixing as desired. The intake tube adapter with prefilter screen prevents gravel or loose material in the aquarium from getting into the pump

Mine came with a used tank and I use it occasionally to speed up WC on larger tanks by removing the end of my python and using this to output directly into the hose. I have used it from time to time for added flow in my 90 but it's a bit lacking in oomph to be really effective for that IME.

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Gas mileage isn't everythingOIIIIIIIOLack of planning on your part does not constitute an emergency on my part.Why pretend there are no stupid questions? Actually, There are many stupid questions: "Should I drink this bleach?" Is just one example.
Having said that, Just because it's a stupid question doesn't mean that it shouldn't be asked. It's better to know.A warm beer is better than a cold beer. Because nothing is better than a cold beer, and a warm beer is better than nothing.